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  • Whatman Grade 934-AH borosilicate glass microfiber filters fromCytiva are smooth water quality filters with high retention efficiency. Grade 934-AH filters are often used in total suspended solids analysis. Smooth surface for efficient precipitate recovery Nominal particle retention of…

  • A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids. A widely used standard grade filter paper for routine applications with medium retention and flow…

  • 1.6 µm Retention Efficient retention of small size particles to 1.6 µm Extremely high flow rate; filtration takes place both vertically and laterally through the filters High loading capacity, which continues to filter efficiently for a greater extended period …

  • Whatman Grade GF/F filter from Cytiva business is manufactured from pure borosilicate glass. GF/F offers very fine particle retention and good loading capacity and flow rate. 0.7 µm nominal particle retention Served as the basis filter for EPA standard for the toxicity…

  • A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels. A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels. Prepleated qualitative filters are…

  • Cytiva thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Büchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates. Thinner filter design (average thickness 115 µm) than most Büchner…

  • 1.5 µm Retention Efficient retention of small size particles to 1.5 µm Extremely high flow rate; filtration takes place both vertically and laterally through the filters High loading capacity, which continues to filter efficiently for a greater extended period …

  • Cytiva Whatman Grade 54 filter paper has high wet strength and a larger nominal particle retention rating than comparable Büchner filtration papers, enabling fast vacuum filtration of coarse precipitates. Acid-treated for high wet-strength and chemical resistance Large nominal particle…

  • Very thick and strong filter with creped surface for extremely high loading capacity, particularly in folded form. Fastest flow rate of any qualitative grade. Highly suitable for coarse particles and gelatinous precipitates. Savings in time required to quadrant-fold circles to fit conical…

  • Cytiva Whatman Grade 72 activated carbon air filter paper is designed for air pollution monitoring of radioactive iodine in medical and nuclear installations. High-quality composite cellulose/glass filter paper Loaded with activated carbon for radioactive iodine absorption Suitable…

  • A very thick filter with high wet strength. Offers medium to slow flow rate and retains very fine precipitates. A very thick filter with high wet strength. Offers medium to slow flow rate and retains very fine precipitates. These filter papers are made from super-refined cellulose and have been…

  • Whatman Grade 934-AH ready-to-use (RTU) filters are the time-saving version of Cytiva 934-AH filters, which are widely used for total suspended solids analysis. Prewashed, preweighed RTU filters eliminate pretreating steps otherwise required by Standard Method 2540D Fine particle…

  • Cytiva Whatman brand Grade GF/C glass filters offer fine particle retention, good flow rate and loading capacity. GF/C filters support liquid scintillation and total suspended solids analysis. Fine nominal particle retention of 1.2 µm Cytiva business offers glass microfiber…

  • Cytiva Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples. Acid-treated for high wet-strength Extremely low ash content (0.006% ash…

  • A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration. A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within…

  • Grade 520bll ½ thick, pleated filter paper with high wet strength offering a very high flow rate. Grade 520bll ½ thick, pleated filter paper with high wet strength offering a very high flow rate.

  • The thinnest of all Whatman filter papers with hardened and highly glazed surface, offering slow flow rate. Hardened low ash: 0.015% ash maximum. These filters are treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. Thesy are particularly…

  • PTFE Plate: Optional extra. For virtually all common acids, alkalis and solvents at temperatures up to 100°C. Maximum working temperature 200°C. PTFE Plate: Optional extra. For virtually all common acids, alkalis and solvents at temperatures up to 100°C. Maximum working temperature 200°C.

  • A standard grade filter paper for fine precipitates . Maintains flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself. Decreased overall filtration time because of the extra surface area exposed; the normal slow down of…

  • Cytiva Whatman EPM 2000 air filters are used in high-volume PM-10 sampling equipment. Manufactured from 100% pure borosilicate glass, they enable detailed chemical analysis of trace pollutants with minimal interference. Air retention efficiency of 99.95 percent of 0.3 µm size particulates …

  • A dense prepleated filter paper for collecting very small particles and removing fine precipitates. Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses. Decreased overall filtration time because of the extra surface area exposed;…

  • Whatman Grade 1V lab filter paper from Cytiva business is a widely used pre-folded filter for many general filtration applications. Nominal particle retention rating of 11 µm supports general filtration Intermediate filtration speed (Herzberg 150 s) Pre-folded filter for…

  • A standard grade filter used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis). A standard grade filter used for a wide variety of…

  • Grade 181 seed testing circles Grade 181 seed testing circles Owing to their extremely high purity our seed testing papers provide reliable and reproducible results. The papers are made from pure cellulose without any additives and do not contain any substances that could influence the growth of…

  • A general qualitative filter with creped surface. High filtration speed, faster than grade 202 and retain coarse particles gelatinous precipitates. High filtration speed Retains coarse or gelatinous particulates Unique crêped gray surface provides optical contrast for white or dark filtrates …

  • Supreme quantitative filter papers featuring fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. Hardened ashless: 0.006% ash maximum. These filters are acid-hardened to give high wet strength and chemical resistance with…

  • Intermediate in speed and retention between Grades 1 and 4. Intermediate in speed and retention between Grades 1 and 4. These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not…

  • Grade 3459 creped or smooth filter papers with good retentivity at a relatively high filtration speed. Grade 3459 creped or smooth filter papers with good retentivity at a relatively high filtration speed. Whatman offers a line of cellulose filter papers for specific applications. The product line…

  • Cytiva Whatman Grade 542 filters are acid hardened to allow high retention of fine precipitates in applications such as metal determinations and hydroxide collection. High wet-strength Acid-hardened for resistance to strong acid and alkali solutions Nominal particle retention rating of 2.7 µm …

  • A fast filter paper with high wet strength. It has a very smooth surface making it easy to scrape or wash off precipitate. A fast filter paper with high wet strength. It has a very smooth surface making it easy to scrape or wash off precipitate. These extremely strong filter papers have a high wet…

  • Slow filter paper with high wet strength. This paper has the same chemical resistance characteristics as Grade 1573. Slow filter paper with high wet strength. This paper has the same chemical resistance characteristics as Grade 1573. These extremely strong filter papers have a high wet strength…

  • The general purpose hardened ashless filter paper with medium retention and flow rate. Hardened ashless: 0.006% ash maximum. These filters are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a…

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